Co‐incubation experiments of CD11b+ cells from the non‐lymphocyte layer of the spleen before and after KK2DP7 training with tumor cells at ratios of 5:1 and 10:1, followed by LDH release detection using an LDH kit, demonstrated that the cytotoxic ability of CD11b+ cells against tumor cells was significantly higher after KK2DP7 training compared to the untrained group (Figure 6o). Here, ITGAM is linked to neoplasm.